How To Start a Stubborn Lawn Mower

  • January 26, 2010
  • 312 Views

Lisa_Cipriano from Lisa_Cipriano (and 4 others)

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If your lawn mower is giving you trouble, check common problem areas before you lug it to the shop.

You Will Need

  • Spark plug
  • Fresh gas
  • Ratchet
  • Screwdriver
  • Rag
  • Air filter

Step 1: Check for gas

Check to see if there’s gas in the tank.

Step 2: Clean spark plug

Pull out and clean the spark plug if it is black or looks wet. If it is corroded, replace it.

Step 3: Evaporate gas

Check to see if the carburetor is flooded. Set the mower on a flat surface and wait 15 minutes for the gas to evaporate. Keep the choke off and try to restart the mower.

A flooded engine will smell of unburned gas.

Step 4: Add new gas

Put new gas in the tank if the mower starts and quickly stalls. Note that if gas sits for a long period, it can go bad. Pour the bad gas out of the tank and then add fresh gas.

Make sure you dispose of your old gas at a hazardous waste site; anywhere else is illegal.

Step 5: Clean the carburetor

Remove the mower’s carburetor with your ratchet and screwdriver and wipe any dirt and debris out of the bowl with a rag.

Step 6: Install a new air filter

Make sure the air filter is clean. Take it out and, if it is dirty and oily, replace it with a new filter.

Step 7: Try again

Try starting your mower again – it should run like new.

In 2001, Gary Hatter set a world record for the longest journey on a lawnmower – he traveled 14,594.5 miles in 260 days.

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